#5183E9#5183E9

#5183E9 is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.5% C 0.163 H 262.9°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#5183E9
RGB	rgb(81, 131, 233)
HSL	hsl(220, 78%, 62%)
HSV	hsv(220, 65%, 91%)
CMYK	cmyk(65.2%, 43.8%, 0%, 8.6%)
CIE-LAB	lab(55.95, 15.33, -56.64)
CIE-LCH	lch(55.95, 58.68, 285.14°)
OKLab	oklab(62.53% -0.0202 -0.1618)
OKLCH	oklch(62.53% 0.163 262.9)
XYZ	xyz(26.2124, 23.8626, 80.2995)
Luminance	0.2387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5183E9 #E9B751

analogous

#51CFE9 #5183E9 #6B51E9

triadic

#5183E9 #E95183 #83E951

tetradic

#5183E9 #E951CF #E9B751 #51E96B

square

#5183E9 #E951CF #E9B751 #51E96B

split-complementary

#5183E9 #E96B51 #CFE951

monochromatic

#1646AA #1C5DE0 #5183E9 #87AAF0 #BED0F7

Accessibility & contrast

On white

3.64

#5183E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.77

#5183E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5183E9

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5183E9	#FFFFFF	#000000	##000000
##5183E9	1.00	3.64	5.77	5.77
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.77	21.00	1.00	1.00
##000000	5.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#528EED

Deuteranopia (green-blind)

#3880E7

Tritanopia (blue-blind)

#009AAB

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #5183e9;
/* rgb */ color: rgb(81, 131, 233);
/* oklch */ color: oklch(62.5% 0.163 262.9);

Tailwind

colors: {
  custom: {
    50: '#90a6f0',
    500: '#5183e9',
    950: '#000000',
  },
}

SCSS

$custom: #5183e9;
$custom-light: #90a6f0;
$custom-dark: #000000;

JSON

{
  "hex": "#5183e9",
  "rgb": {
    "r": 81,
    "g": 131,
    "b": 233
  },
  "hsl": {
    "h": 220.263,
    "s": 77.551,
    "l": 61.569
  },
  "oklch": {
    "l": 0.62533,
    "c": 0.16307,
    "h": 262.9
  },
  "luminance": 0.23865
}

Semantic roles & 50–950 ramp

primary

#5183E9

secondary

#E7D5AF

accent

#960CDA

background

#F9FAFE

surface

#F2F4FD

border

#CCCED5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #5183E9

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →